From the same HIStory series so a bit of a similar thread is expected between series. The similarity between the two series is when two step-brother relationship grows beyond the familial and buds into something more.

Very similar storyline where two step brothers come together and a familial relationship grows beyond and evolves into something more.

Both are similar plot lines of two best friends who went to the next level but couldn’t sustain their relationship beyond friends.

Both deal with the strength of the family bond in Asian society. Seven Sundays is not as tragic but the theme is similar.